Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Spook Cave is a flooded cave located about seven miles west of McGregor, Iowa in rural Clayton County, Iowa. It is privately owned and is operated as a tourist attraction. One can take an escorted boat ride into the cave. The cave was first discovered in 1953 and opened for business in 1955. There is a campground with full service for RVs. The cave is in the drainage of... Mehr